CVE-2011-0064 (retired)

The hb_buffer_ensure function in hb-buffer.c in HarfBuzz, as used in Pango1.28.3, Firefox, and other products, does not verify that memoryreallocations succeed, which allows remote attackers to cause a denial ofservice (NULL pointer dereference and application crash) or possiblyexecute arbitrary code via crafted OpenType font data that triggers use ofan incorrect index.